Finding the Fourth Proportional to 7,242,660.64, 9,991,124.04 and 4,919,672.98
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Solution
The fourth proportional to 7,242,660.64, 9,991,124.04 and 4,919,672.98 is: 6,786,603.08
Step by Step Solution
- Step 1: Write the proportion equation
7,242,660.64 : 9,991,124.04 = 4,919,672.98 : x - Step 2: Convert to fraction form
7,242,660.64/9,991,124.04 = 4,919,672.98/x - Step 3: Cross multiply
7,242,660.64x = 9,991,124.04 × 4,919,672.98 - Step 4: Simplify right side
7,242,660.64x = 49,153,062,979,416.44 - Step 5: Solve for x
x = 49,153,062,979,416.44/7,242,660.64 - Step 6: Final answer
x = 6,786,603.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.